Aerosol generating device

Abstract

The utility model relates to the technical field of aerosol, and particularly discloses an aerosol generating device which comprises a metal shell, an accommodating cavity, a heating element, a PCB (Printed Circuit Board), a USB (Universal Serial Bus) seat and a conductive piece, the accommodating chamber is used for accommodating an aerosol generating product; the heating element is used for heating the aerosol generating article to generate aerosol; the PCB is arranged in the metal shell; the USB seat is arranged on the PCB, and at least part of the USB seat is exposed to be connected with an external power supply; the conductive piece is arranged on the PCB and abuts against the inner wall of the metal shell. The conductive part is located between the PCB and the USB seat. According to the aerosol generating device, the PCB, the conductive part and the USB seat are sequentially stacked in the upper space and the lower space, so that the conductive part cannot generate interference influence on the internal structural space and assembly of the aerosol generating device, the assembly is convenient, and the miniaturization design of the product is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol, in particular to an aerosol generating device. Background Art

[0002] Traditional tobacco generating substrates (such as cigarettes, cigars, etc.) burn tobacco during use to generate tobacco smoke. There are already products in the prior art that release compounds without burning by heating to replace these traditional tobacco generating substrates. Examples of such products are aerosol generating devices, which usually include a heating element and a battery cell for supplying electrical energy to the heating element. The heating element is used to heat the aerosol generating substrate to generate an aerosol for the user to inhale. Many aerosol generating devices have a metal shell, and the structure of its PCBA board is also very complex. Therefore, electrostatic tests need to be carried out during reliability tests, so that the electrostatic conductive structure is tightly fitted with the grounding component to achieve electrostatic conduction of the metal shell.

[0003] The aerosol generating devices of the prior art achieve electrostatic conduction by providing conductive structures such as conductive foam, conductive shrapnel or welding wires on the PCB board. In order to make the above conductive structures contact the metal shell, the structure design is complex, which will interfere with the internal structure space and assembly of the aerosol generating device, and is not conducive to the miniaturization of the product. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an aerosol generating device to solve the problem that in the prior art, the conductive structure design is complex, which will interfere with the internal structure space and assembly of the aerosol generating device and is not conducive to the miniaturization of the product.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an aerosol generating device, including:

[0007] A metal shell;

[0008] A receiving chamber for receiving aerosol generating articles;

[0009] A heating element for heating the aerosol generating article to generate an aerosol;

[0010] A PCB board disposed within the metal shell;

[0011] A USB socket, the USB socket is disposed on the PCB board and at least partially exposed to connect to an external power source;

[0012] A conductive member, the conductive member is disposed on the PCB board and abuts against the inner wall of the metal shell; the conductive member is located between the PCB board and the USB socket.

[0013] As an alternative to the above aerosol generating device, the conductive member is fixed to the PCB board by surface mounting.

[0014] As an alternative to the above aerosol generating device, the PCB board has a grounding terminal, and the conductive member is conductively connected to the grounding terminal.

[0015] As an alternative to the above aerosol generating device, the aerosol generating device further includes a probe holder, the probe holder is disposed on the PCB board, and the conductive member is fixedly disposed on the probe holder.

[0016] As an alternative to the above aerosol generating device, the USB socket has an avoidance portion, and the probe holder is located within the avoidance portion.

[0017] As an alternative to the above aerosol generating device, the inner wall of the metal housing is laser-engraved to form an engraved area, and the conductive member abuts against the inner wall of the engraved area.

[0018] As an alternative to the above aerosol generating device, the inner wall of the engraved area is arranged in an arc shape.

[0019] As an alternative to the above aerosol generating device, the conductive member is a spring probe.

[0020] As an alternative to the above aerosol generating device, the metal housing has a first end and a second end which are oppositely arranged, the first end is provided with an installation opening, the PCB board can be inserted into the metal housing through the installation opening, and the conductive member abuts against the inner wall of the second end.

[0021] As an alternative to the above aerosol generating device, the conductive member extends along the insertion direction of the PCB board.

[0022] The beneficial effects of the present utility model are:

[0023] The aerosol generating device includes a metal housing, a receiving chamber, a heating element, a PCB board, a USB socket, and a conductive member. The receiving chamber is used to receive aerosol generating articles, and the heating element is used to heat the aerosol generating articles to generate aerosol. The PCB board is disposed inside the metal housing. The USB socket is provided on the PCB board and at least partially exposed to connect to an external power source, thereby realizing the power supply of the aerosol generating device by the external power source. At the same time, the conductive member is provided on the PCB board and abuts against the inner wall of the metal housing. Thus, after the conductive member contacts the inner wall of the metal housing, electrostatic conduction can be performed on the metal housing, and the conductive member is located between the PCB board and the USB socket, so that the PCB board, the conductive member, and the USB socket are stacked in sequence in the vertical space. Furthermore, the conductive member will not interfere with the internal structural space and assembly of the aerosol generating device, facilitating assembly and being conducive to the miniaturized design of the product. Description of the Drawings

[0024] Figure 1 Schematic structural diagram of the aerosol generating device provided by an embodiment of the present utility model;

[0025] Figure 2 Schematic structural diagram of the USB socket and the conductive member mounted on the PCB board provided by an embodiment of the present utility model;

[0026] Figure 3 Schematic structural diagram of the metal housing provided by an embodiment of the present utility model;

[0027] Figure 4 Partial cross-sectional view of the metal housing provided by an embodiment of the present utility model;

[0028] Figure 5 Exploded structural diagram of the aerosol generating device provided by an embodiment of the present utility model.

[0029] In the figure:

[0030] 1, metal housing; 11, first end; 12, second end; 13, mounting opening; 14, laser engraving area; 2, PCB board; 3, USB socket; 31, avoidance portion; 4, conductive member; 5, probe socket. Detailed Embodiment

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and cannot be construed as a limitation to the present utility model.

[0035] As Figures 1 to 5 shown, the present embodiment provides an aerosol generating device for conducting static electricity on the metal housing 1.

[0036] The aerosol generating device includes a metal housing 1, a receiving chamber, a heating element, a PCB board 2, a USB socket 3 and a conductive member 4. The receiving chamber is used to receive aerosol generating articles, and the heating element is used to heat the aerosol generating articles to generate aerosol.

[0037] The heating element can surround the receiving chamber. Then, when the aerosol-generating article is received in the receiving chamber, the heat generated by the heating element can be transferred to the aerosol-generating article from the side of the aerosol-generating article, thereby heating the aerosol-generating article. Alternatively, in some embodiments, the heating element can also extend into the receiving chamber, so that when the aerosol-generating article is received in the receiving chamber, at least a part of the heating element can be inserted into the aerosol-generating article for heating.

[0038] In addition, the heating element can heat the aerosol-generating article by electromagnetic induction. Specifically, the heating element can be configured to be penetrated by a changing magnetic field, and then generate heat under the action of the eddy current effect and the hysteresis effect; alternatively, the heating element can also use any one of a resistance heating wire, a resistance heating film, an infrared electrothermal coating, etc. to heat the aerosol-generating article.

[0039] The aerosol-generating article preferably uses a tobacco-containing material that releases volatile compounds from the article when heated; or it can also be a non-tobacco material that is suitable for electrically heated smoking after heating. The aerosol-generating article preferably uses a solid article, which can include one or more of vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco in the form of powder, granules, fragments, strips, bands or flakes; or the solid article can contain additional tobacco or non-tobacco volatile flavor compounds to be released when the article is heated. In some embodiments, the aerosol-generating device can also heat a liquid aerosol-generating article to atomize it to generate an aerosol, and the liquid aerosol-generating article can contain nicotine and / or flavoring agent and / or aerosol-generating substance (e.g., glycerol).

[0040] Specifically, the PCB board 2 is disposed inside the metal housing 1, where the USB socket 3 is disposed on the PCB board 2 and at least partially exposed to connect to an external power supply, thereby realizing the power supply of the external power supply to the aerosol-generating device. At the same time, the conductive member 4 is disposed on the PCB board 2 and abuts against the inner wall of the metal housing 1. Thus, after the conductive member 4 contacts the inner wall of the metal housing 1, electrostatic conduction of the metal housing 1 can be achieved, and the conductive member 4 is located between the PCB board 2 and the USB socket 3, so that the PCB board 2, the conductive member 4 and the USB socket 3 are stacked in sequence in the vertical space. Furthermore, the conductive member 4 will not interfere with the internal structural space and assembly of the aerosol-generating device, facilitating assembly and being conducive to the miniaturized design of the product. Optionally, the conductive member 4 is a spring probe, so that the elastic spring probe can generate a buffer when abutting against the inner wall of the metal housing 1. Then, under the action of the elastic force, the conductive probe 4 can maintain good electrical contact with the metal housing 1, and at the same time, the conductive member 4 can be prevented from being damaged.

[0041] Furthermore, the conductive member 4 is fixed to the PCB board 2 by surface mounting, so that the conductive member 4 can utilize the space on the surface of the PCB board 2 without punching holes in the PCB board 2, saving installation space, improving circuit performance, and not affecting the installation of other components on the PCB board 2. At the same time, the PCB board 2 has a grounding terminal, and the conductive member 4 is conductively connected to the grounding terminal. Thus, through the direct conductive connection between the conductive member 4 and the grounding terminal of the PCB board 2, the indirect conduction of the intermediate electrical connection device is omitted, saving installation space and improving circuit performance.

[0042] As Figure 2 shown, the aerosol generating device further includes a probe seat 5. The probe seat 5 is disposed on the PCB board 2, and the conductive member 4 is fixedly disposed on the probe seat 5. Thus, through the arrangement of the probe seat 5, the stability of the conductive member 4 on the PCB board 2 can be enhanced, and the conductive member 4 can be prevented from being bent and deformed after contacting the inner wall of the metal shell 1. At the same time, the USB socket 3 has an avoidance portion 31, and the probe seat 5 is located within the avoidance portion 31. By providing the avoidance portion 31 on the USB socket 3 to avoid the probe seat 5, it is possible to prevent the probe seat 5 from occupying the space of other components on the PCB board 2, thereby facilitating the miniaturized design of the product.

[0043] As Figures 1 to 4 shown, the inner wall of the metal shell 1 is laser-engraved to form an engraved area 14, and the conductive member 4 abuts against the inner wall of the engraved area 14. Thus, by forming the engraved area 14, the oxide layer on the inner wall of the metal shell 1 can be removed, thereby improving the static electricity conduction ability of the conductive member 4 to the metal shell 1. Optionally, the inner wall of the engraved area 14 is arc-shaped, so that the conductive member 4 can fully contact the inner wall of the engraved area 14, further improving the static electricity conduction ability of the conductive member 4 to the metal shell 1.

[0044] Furthermore, the metal shell 1 has a first end 11 and a second end 12 which are oppositely arranged. The first end 11 is provided with an installation opening 13, and the PCB board 2 can be inserted into the metal shell 1 through the installation opening 13. The conductive member 4 abuts against the inner wall of the second end 12, thereby realizing the assembly of the PCB board 2, the USB socket 3, and the conductive member 4 within the metal shell 1. At the same time, the conductive member 4 extends along the insertion direction of the PCB board 2. Thus, when the PCB board 2 is inserted into the interior of the metal shell 1 along the insertion direction, there is no need to consider the pre-pressure generated between the conductive member 4 and the metal shell 1 during the movement, which may affect the assembly, and the conductive member 4 can be prevented from being worn due to pre-pressure during the movement. At the same time, it is also convenient to assemble other components on the metal shell 1, thereby facilitating the miniaturized design of the product.

[0045] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An aerosol generating device, characterized in that Comprising: A metal housing (1); A receiving chamber for receiving an aerosol-generating article; A heating element for heating the aerosol-generating article to generate an aerosol; A PCB board (2) disposed within the metal housing (1); A USB socket (3), the USB socket (3) being disposed on the PCB board (2) and at least partially exposed to connect to an external power supply; A conductive member (4), the conductive member (4) being disposed on the PCB board (2) and abutting against the inner wall of the metal housing (1); the conductive member (4) is located between the PCB board (2) and the USB socket (3).

2. The aerosol generating device according to claim 1, wherein The conductive member (4) is surface-mounted and fixed to the PCB board (2).

3. The aerosol generating device according to claim 1, characterized in that, The PCB board (2) has a ground terminal, and the conductive member (4) is conductively connected to the ground terminal.

4. The aerosol generating device according to claim 1, wherein The aerosol-generating device further includes a probe socket (5), the probe socket (5) being disposed on the PCB board (2), and the conductive member (4) is fixedly disposed on the probe socket (5).

5. The aerosol generating device according to claim 4, characterized in that The USB socket (3) has an avoidance portion (31), and the probe socket (5) is located within the avoidance portion (31).

6. The aerosol generating device according to claim 1, wherein: The inner wall of the metal housing (1) is laser-engraved to form an engraved area (14), and the conductive member (4) abuts against the inner wall of the engraved area (14).

7. The aerosol generating device according to claim 6, wherein: The inner wall of the engraved area (14) is arc-shaped.

8. The aerosol generating device according to any one of claims 1 to 7, characterized in that: The conductive member (4) is a spring probe.

9. The aerosol generating device according to any one of claims 1 to 7, characterized in that, The metal housing (1) has a first end (11) and a second end (12) disposed opposite to each other. The first end (11) is provided with an installation opening (13). The PCB board (2) can be inserted into the metal housing (1) through the installation opening (13), and the conductive member (4) abuts against the inner wall of the second end (12).

10. The aerosol generating device according to claim 9, characterized in that, The conductive member (4) extends along the insertion direction of the PCB board (2).

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